Doubling Down on Open Source Tools and Phasing Out Defender

OpenZeppelin is doubling down on open source development tools by sunsetting Defender and releasing production-ready open source Relayers and Monitor. Discover new features, and our expanded open ...

The DeFi space, and recently the NFT space, have continued to see a variety of exploits and even...

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Gas tokens should be minted at a low gas price, and then burnt at a high gas price, thereby saving...

Security Insights

Today we are announcing the release of a new app, called Sentinels, to help prevent ongoing attacks...

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We are excited to bring you many new Defender features this month that add powerful functionality...

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Clones (minimal proxies) as described in ERC1167, are very small, and cheap to deploy,...

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The BarnBridge team asked us to review and audit their Smart Yield Bond smart contracts. We looked...

Security Audits

Gasless MetaTransactions with OpenZeppelin Defender. The workshop covers the following: Intro to...

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As we build a community of decentralized services for the open economy, we could easily repeat...

Security Insights

The Compound team engaged us to audit a new governance mechanism called Governor Bravo.

Security Audits Solidity Governance

Fei Protocol is the first protocol creating a stablecoin using a new stability mechanism called...

Security Audits

The cLabs team working on the Celo platform asked us to review and audit the smart contracts for...

Security Audits

OpenZeppelin Contracts 3.4 includes an ERC777 security fix for potential reentrancy issues in...

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